EduSahara™ Assignment
Name : Median of Raw Data
Chapter : Mean and Median of Ungrouped Data
Grade : ICSE Grade IX
License : Non Commercial Use
Question
1
1.
The scores obtained by 10 students in a test are given below. Find the median.
16
17
18
8
10
16
14
8
8
20
(i)
12
(ii)
13
1
2
(iii)
20
(iv)
15
(v)
8
Question
2
2.
Find the median of all prime numbers between 40 and 90.
(i)
64
(ii)
62
(iii)
65
(iv)
67
(v)
63
Question
3
3.
Find the median of all the factors of 30.
(i)
9
2
(ii)
13
2
(iii)
11
2
(iv)
6
(v)
21
4
Question
4
4.
Find the median of first 7 whole numbers.
(i)
3
(ii)
2
(iii)
6
(iv)
4
(v)
0
Question
5
5.
Find the median of all the factors of 20.
(i)
11
2
(ii)
5
(iii)
17
4
(iv)
9
2
(v)
7
2
Question
6
6.
Find the median of the first 10 odd numbers.
(i)
11
(ii)
13
(iii)
10
(iv)
8
(v)
9
Question
7
7.
Find the median of the first 10 even numbers.
(i)
8
(ii)
14
(iii)
10
(iv)
11
(v)
12
Question
8
8.
The marks obtained by 10 students in a test are given below. Find their median marks.
48
5
17
40
24
14
48
45
12
34
(i)
28
(ii)
30
(iii)
29
(iv)
31
(v)
26
Question
9
9.
Heights of 13 students (in cm) are given below. Find the median height.
156
163
147
168
150
133
138
143
130
129
155
164
132
(i)
149
cm
(ii)
147
cm
(iii)
145
cm
(iv)
146
cm
(v)
148
cm
Question
10
10.
Heights of 10 plants (in cm) are given below. Find the median height.
83
50
100
88
67
77
83
68
91
68
(i)
79
cm
(ii)
82
cm
(iii)
78
cm
(iv)
81
cm
(v)
80
cm
Question
11
11.
Ages of 14 students (in years) are given below. Find the median age.
14
10
10
11
13
11
13
11
13
14
15
13
14
13
(i)
11
years
(ii)
14
years
(iii)
13
years
(iv)
15
years
(v)
12
years
Question
12
12.
Rainfall of 13 days (in mm) are given below. Find the median rainfall.
12
8
10
8
15
8
5
12
11
11
12
10
5
(i)
11
mm
(ii)
12
mm
(iii)
9
mm
(iv)
10
mm
(v)
8
mm
Question
13
13.
Scores of 12 students are given below. Find the median score.
87
75
80
87
81
84
88
78
82
72
70
79
(i)
81
(ii)
163
2
(iii)
165
2
(iv)
161
2
Question
14
14.
Temperatures of 11 days (in °C) are given below. Find the median temperature.
29
27
29
26
27
25
30
31
34
32
35
(i)
29
°C
(ii)
30
°C
(iii)
31
°C
(iv)
27
°C
(v)
28
°C
Question
15
15.
Weights of 13 students (in kg) are given below. Find the median weight.
54
60
43
43
47
53
53
59
42
56
57
44
47
(i)
51
kg
(ii)
53
kg
(iii)
54
kg
(iv)
52
kg
(v)
55
kg
Question
16
16.
Daily wages of 13 labourers (in ₹) are given below. Find the median wage.
315
433
445
362
449
384
337
460
343
371
477
380
424
(i)
₹
382.00
(ii)
₹
384.00
(iii)
₹
386.00
(iv)
₹
383.00
(v)
₹
385.00
Question
17
17.
The observations of an ungrouped data are
x
1
,
x
2
,
2x
1
and
x
1
<
x
2
<
2x
1
.
If the mean and median of the data are equal to
3
,
find the observations of the data
(i)
6
,
3
,
8
(ii)
2
,
3
,
4
(iii)
3
,
3
,
6
(iv)
4
,
3
,
8
Question
18
18.
The observations of an ungrouped data are
x
1
,
x
2
,
x
3
and
x
1
<
x
2
<
x
3
.
If the mean and median of the data are
42
and
28
respectively and
x
3
-
x
1
=
70
,
find
x
1
,
x
2
,
x
3
(i)
28
,
28
,
168
(ii)
18
,
28
,
88
(iii)
14
,
28
,
84
(iv)
16
,
28
,
86
Question
19
19.
Given an even number of random samples with the middle two samples as
x +
23
and x +
26
and the median as
27
1
2
,
find the value of x.
(i)
1
(ii)
6
(iii)
4
(iv)
3
(v)
2
Assignment Key
1) (iv)
2) (i)
3) (iii)
4) (i)
5) (iv)
6) (iii)
7) (iv)
8) (iii)
9) (ii)
10) (v)
11) (iii)
12) (iv)
13) (iv)
14) (i)
15) (ii)
16) (ii)
17) (ii)
18) (iii)
19) (iv)
